CVE-2021-1540

HIGH

Cisco StarOS - Authenticated Authorization Bypass via CLI Command Execution

Title source: llm
STIX 2.1

Description

Multiple vulnerabilities in the authorization process of Cisco ASR 5000 Series Software (StarOS) could allow an authenticated, remote attacker to bypass authorization and execute a subset of CLI commands on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.

References (1)

Core 1

Scores

CVSS v3 8.1
EPSS 0.0026
EPSS Percentile 49.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-863
Status published
Products (2)
cisco/staros < 21.16.9
cisco/virtualized_packet_core
Published Jun 04, 2021
Tracked Since Feb 18, 2026